I live in southern AZ, and there's little chances of freezing weather for 11 months of the year.
I've started using 4 - 5 drops of DAWN dish detergent with water in my windshield washer reservoir. ( it's a matter of convenience )
It does a great job of cleaning the windows... cuts the dust and dirt, no foam, no smear.
Is there a remote chance I'll damage the washer pump with this mixture ?